Astral (アストラル
Asutoraru) is a being from the Astral World in
Yu-Gi-Oh! ZEXAL that serves as the deuteragonist of the series along with his partner and eventual friend
Yuma Tsukumo. He was sent to the Human World by Eliphas to destroy the
Barian World in order to
Rank-Up their world, but after
Kazuma Tsukumo modified his programming, he was sent to Yuma instead. Astral uses Yuma's Deck, but Yuma uses his Deck with an offensive strategy, while Astral takes a more defensive approach using "
Gogogo"
monsters. However, like Yuma, he utilizes various
Spell and
Trap Cards and focuses on Summoning "
Utopia", and eventually its
upgraded version. While Dueling Yuma, Astral uses a
"Number" Deck[16] due to him having access to all 100 original "Numbers" and includes the upgraded forms of "Utopia" in his Deck. His Deck's strategy forces on quickly Summoning "Utopia" and its alternate forms, while using "
Number 99: Utopic Dragon" as a last resort. Like
Eliphas, he uses no non-
Xyz Monsters in his final Duel.